Variable grade level



FIG. 1 is a left, front perspective view of a variable grade levelshowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side being amirror image thereto.

The broken lines shown in FIG. 1 are not a part of the design sought tobe patented and are included merely to show environmental structure.

The ornamental design for a variable grade level, as shown anddescribed.